Nailing tool



FIG. 1 is a right side elevational view of a nailing tool showing our new design. The broken line is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a top plan view; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a nailing tool, as shown and described. 